Test fixture and assembly method for KU-band TR components

Abstract

The present invention provides a test fixture and assembly method for a KU-band TR component, belonging to the field of communications technology. The fixture comprises: a base, a low-frequency electrical connector, a cluster fixing block, and a radio frequency cable. The base is provided with a plurality of test communication holes; the low-frequency electrical connectors are inserted into each test communication hole in a one-to-one correspondence; the cluster fixing block is fixed to the base; and there are multiple radio frequency cables, which are connected to some of the low-frequency electrical connectors. The test fixture for the KU-band TR component provided by the present invention utilizes the base to provide support for the low-frequency electrical connector and the cluster fixing block to provide connection support for the radio frequency cable. The radio frequency cable is connected to the TR component via the low-frequency electrical connector, resulting in a reliable, stable, and convenient connection, which can improve the stability of TR component testing.

Description

Technical Field

[0001] The present invention belongs to the field of communication technology, and in particular relates to a test fixture and an assembly method for a KU-band TR component. Background Art

[0002] Active phased array (TR) modules used in radars are gradually evolving from brick-type to lower-profile tile-type modules. Traditional brick-type TR module testing, due to its thinness, can be performed by fastening a flanged base to the module mounting holes. Tile-type TR modules, however, have covers around their input and output ports, requiring only SMP-KB series connectors without flanges, resulting in poor test stability. Summary of the Invention

[0003] The embodiments of the present invention provide a test fixture and assembly method for a KU-band TR component, aiming to solve the problem of poor testing stability of tile-type TR components.

[0004] In the first aspect, in order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a test tool for a KU-band TR component, including: a base, a low-frequency electrical connector, a cluster fixing block and a radio frequency cable, the base is provided with a plurality of test connecting holes; the low-frequency electrical connectors are inserted into each of the test connecting holes one by one; the cluster fixing block is fixed on the base; there are multiple radio frequency cables, and they are connected to some of the low-frequency electrical connectors.

[0005] In combination with the first aspect, in a possible implementation, several of the test connecting holes are arranged in a matrix array, and the low-frequency electrical connectors are arranged in a matrix array; the cluster fixing block is fixed to the area where one column of the low-frequency electrical connectors is located, and the cluster fixing block is provided with a coaxial hole corresponding to the position of each of the low-frequency electrical connectors, and the RF cable is connected one-to-one to the low-frequency electrical connectors in the column through the coaxial hole.

[0006] In combination with the first aspect, in a possible implementation, the cluster fixing block includes a first fixing block and a second fixing block docked with the first fixing block, the side of the first fixing block is provided with a first semicircular hole, the side of the second fixing block is provided with a second semicircular hole, and the first semicircular hole and the second semicircular hole are docked to form the coaxial hole.

[0007] In combination with the first aspect, in a possible implementation, the first fixing block is a groove-shaped structure, the second fixing block is docked at the groove of the first fixing block, and the shape of the first fixing block and the second fixing block after docking is a rectangle.

[0008] In combination with the first aspect, in a possible implementation, the two ends of the first fixing block in the length direction are flush with the two opposite side surfaces of the base, and a first connecting hole is provided at each end of the first fixing block in the length direction, and the first fixing block is fastened to the base by a first connecting member passing through the first connecting hole; a second connecting hole is provided on the side of the second fixing block, and a coaxially connected threaded hole is provided on the side connected to the first fixing block, and the second fixing block is screwed to the threaded hole by a second connecting member passing through the second connecting hole.

[0009] In combination with the first aspect, in a possible implementation, the radio frequency cable is connected to the outermost row of low-frequency electrical connectors.

[0010] In combination with the first aspect, in a possible implementation, raised support blocks are symmetrically provided at two opposite ends of the base, and the cluster fixing block is fixed on the support blocks.

[0011] In combination with the first aspect, in a possible implementation, an internally threaded column is provided on the support block, and an adapting hole into which the internally threaded column extends is provided on the lower end surface of the cluster fixing block.

[0012] In combination with the first aspect, in a possible implementation, the base is further provided with a third connection hole for connecting to the TR assembly.

[0013] In a second aspect, an embodiment of the present invention further provides an assembly method for a test fixture based on the KU-band TR component, the assembly method comprising:

[0014] Assemble the low-frequency electrical connector onto the base;

[0015] Fix the base to the input and output end faces of the tile-type TR component;

[0016] Fix the radio frequency cable to the low frequency electrical connector using a cluster fixing block;

[0017] After connecting the RF cable and low-frequency electrical connector to the test equipment, conduct the test.

[0018] Compared with the prior art, the test fixture for the KU-band TR component provided by the present invention has the following advantages: a base is used to provide support for the low-frequency electrical connector, and a cluster fixing block is used to provide connection support for the RF cable. The RF cable is connected to the TR component through the low-frequency electrical connector, and the connection is reliable, stable, and convenient, which can improve the stability of the TR component test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the test tool for the KU band TR component provided in an embodiment of the present invention Figure 1 ;

[0020] Figure 2 Schematic diagram of the structure of the test tool for the KU band TR component provided in an embodiment of the present invention Figure 2 ;

[0021] Figure 3 Schematic diagram of the structure of the test tool for the KU band TR component provided in an embodiment of the present invention Figure 3 ;

[0022] Figure 4 A schematic diagram of the exploded structure of a test fixture for a KU-band TR assembly provided in an embodiment of the present invention;

[0023] Figure 5 A schematic top view of the TR assembly used in an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Schematic diagram of the main structure of the TR component used;

[0025] Figure 7 for Figure 5 A schematic side view of the TR assembly used;

[0026] Description of reference numerals:

[0027] 1. TR assembly; 2. Base; 3. Internally threaded column; 4. Support block; 5. Low-frequency electrical connector; 6. First fixing block; 7. Second fixing block; 8. RF cable; 9. First connecting piece; 10. Second connecting piece. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Please also refer to Figures 1 to 4 The KU-band TR module test fixture provided by the present invention is now described. The KU-band TR module test fixture comprises a base 2, low-frequency electrical connectors 5, a cluster fixing block, and radio frequency cables 8. The base 2 is provided with a plurality of test holes; the low-frequency electrical connectors 5 are inserted into each of the test holes in a one-to-one correspondence; the cluster fixing block is fixed to the base 2; and there are multiple radio frequency cables 8, which are connected to some of the low-frequency electrical connectors 5.

[0030] Compared with the prior art, the test fixture for the KU-band TR component 1 provided by the present invention has the following advantages: the base 2 is used to provide support for the low-frequency electrical connector 5, and the cluster fixing block is used to provide connection support for the RF cable 8. The RF cable 8 is connected to the TR component 1 through the low-frequency electrical connector 5, and the connection is reliable, stable, and convenient, which can improve the stability of the TR component 1 test.

[0031] The low-frequency electrical connector 5 is an SMA connector, the female end of which is exposed outside the base 2 to facilitate the connection of the radio frequency cable 8 .

[0032] In some embodiments, see Figures 1 to 4 As shown, several test communication holes are arranged in a matrix array, and low-frequency electrical connectors 5 are arranged in a matrix array. A cluster fixing block is fixed to the area where one row of low-frequency electrical connectors 5 is located. The cluster fixing block has coaxial holes corresponding to the positions of each low-frequency electrical connector 5. RF cables 8 are connected to the low-frequency electrical connectors 5 in that row through the coaxial holes. This embodiment provides a 4x4 array of connectors, corresponding to the testing of a 4x4 array of TR assemblies 1; for an 8x8 array of TR assemblies 1, an 8x8 array of test fixtures is provided. Similarly, TR assemblies 1 of different arrays can be tested.

[0033] In some embodiments, see Figures 1 to 4 As shown, the cluster fixing block includes a first fixing block 6 and a second fixing block 7 that docks with the first fixing block 6. The side of the first fixing block 6 is provided with a first semicircular hole, and the side of the second fixing block 7 that docks with the first semicircular hole is provided with a second semicircular hole. The first and second semicircular holes dock to form a coaxial hole. The cluster fixing block adopts a split structure, that is, the coaxial hole is divided into two halves. This facilitates the fixing of the end of the RF cable 8. When fixing the RF cable 8, the end of the RF cable 8 is placed close to the first semicircular hole, and then the second fixing block 7 is docked with the first fixing block 6.

[0034] In some embodiments, see Figures 1 to 4 As shown, the first fixing block 6 is a groove-shaped structure, and the second fixing block 7 is docked at the groove of the first fixing block 6, and the shape of the first fixing block 6 and the second fixing block 7 after docking is rectangular. The groove of the first fixing block 6 serves as a limit for the second fixing block 7.

[0035] In some embodiments, see Figures 1 to 4As shown, the lengthwise ends of the first fixing block 6 are flush with the opposing side surfaces of the base 2, and a first connecting hole is provided at each end of the first fixing block 6. The first fixing block 6 is secured to the base 2 via a first connecting member 9 that passes through the first connecting hole. A second connecting hole is provided on the side surface of the second fixing block 7. A coaxial threaded hole is provided on the side surface of the first fixing block 6. The second fixing block 7 is screwed to the threaded hole via a second connecting member 10 that passes through the second connecting hole. Specifically, both the first connecting member 9 and the second connecting member 10 are bolts, and the cluster fixing block is secured to the base 2 via the bolts.

[0036] In some embodiments, see Figures 1 to 4 As shown, the radio frequency cables 8 are connected to the outermost row of low frequency electrical connectors 5 .

[0037] In some embodiments, see Figures 1 to 4 As shown, the base 2 has symmetrically protruding support blocks 4 at opposite ends, and the cluster fixing block is fixed on the support blocks 4. The support blocks 4 thicken the structure of the fixed portion between the cluster fixing block and the base 2, thereby improving the stability of the connection between the cluster fixing block and the base 2.

[0038] In some embodiments, see Figures 1 to 4 As shown, the support block 4 is provided with an internally threaded column 3, and the lower end surface of the cluster fixing block is provided with an adapter hole into which the internally threaded column 3 extends. The internally threaded column 3 serves to position the cluster fixing block and also avoids the influence of the threaded hole on the base 2 on the strength of the base 2.

[0039] In some embodiments, see Figures 1 to 4 As shown, the base 2 is further provided with a third connection hole for connecting to the TR assembly 1. The base 2 is fastened to the TR assembly 1 by screws passing through the third connection hole.

[0040] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0041] Based on the same inventive concept, see Figures 1 to 7 As shown, an embodiment of the present invention further provides an assembly method of a test fixture based on the KU band TR component, the assembly method comprising:

[0042] Assemble the low-frequency electrical connector 5 onto the base 2;

[0043] Fix the base 2 to the input and output end faces of the tile-type TR assembly 1;

[0044] Fix the radio frequency cable 8 to the low frequency electrical connector 5 using a cluster fixing block;

[0045] After the radio frequency cable 8 and the low frequency electrical connector 5 are connected to the testing equipment, the test is performed.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A test fixture for KU band TR components, characterized in that: include: The base (2) is provided with a plurality of test communication holes; Low-frequency electrical connectors (5) are inserted into the test communication holes in a one-to-one correspondence; A cluster fixing block, fixedly mounted on the base (2); as well as A plurality of radio frequency cables (8) connected to some of the low frequency electrical connectors (5); The plurality of test communication holes are arranged in a matrix array, and the low-frequency electrical connectors (5) are arranged in a matrix array; the cluster fixing block is fixed to an area where one column of the low-frequency electrical connectors (5) is located, and a coaxial hole is provided on the cluster fixing block at a position corresponding to each of the low-frequency electrical connectors (5), and the radio frequency cables (8) are connected to the low-frequency electrical connectors (5) in the column one by one through the coaxial holes; The cluster fixing block comprises a first fixing block (6) and a second fixing block (7) docked with the first fixing block (6), a first semicircular hole is provided on the side surface of the first fixing block (6), and a second semicircular hole is provided on the side surface of the second fixing block (7) where the first semicircular hole is docked with the second semicircular hole to form the coaxial hole; The first fixing block (6) is a groove-shaped structure, the second fixing block (7) is docked at the groove of the first fixing block (6), and the shape of the first fixing block (6) and the second fixing block (7) after docking is rectangular.

2. The test fixture for the KU band TR component according to claim 1, characterized in that: The two ends of the first fixing block (6) in the length direction are flush with the two side surfaces opposite to the base (2), and the two ends of the first fixing block (6) in the length direction are respectively provided with a first connecting hole, and the first fixing block (6) is fastened to the base (2) through a first connecting member (9) passing through the first connecting hole; the side of the second fixing block (7) is provided with a second connecting hole, and the side connected to the first fixing block (6) is provided with a coaxially connected threaded hole, and the second fixing block (7) is screwed to the threaded hole through a second connecting member (10) passing through the second connecting hole.

3. The test fixture for the KU band TR component according to claim 1, characterized in that: The radio frequency cable (8) is connected to the outermost row of low-frequency electrical connectors (5).

4. The test fixture for the KU band TR component according to claim 1, characterized in that: Protruding support blocks (4) are symmetrically provided at opposite ends of the base (2), and the cluster fixing block is fixed on the support block (4).

5. The test fixture for the KU band TR component according to claim 4, characterized in that: An internal thread column (3) is provided on the support block (4), and an adapting hole into which the internal thread column (3) extends is provided on the lower end surface of the cluster fixing block.

6. The test fixture for the KU band TR component according to claim 1, characterized in that: The base (2) is also provided with a third connection hole for connecting to the TR assembly (1).

7. A method for assembling a test fixture for a KU-band TR component according to any one of claims 1 to 6, characterized in that: The assembly method comprises: Assembling the low-frequency electrical connector (5) onto the base (2); Fixing the base (2) to the input and output end faces of the tile-type TR assembly (1); The radio frequency cable (8) is fixed to the low frequency electrical connector (5) using a cluster fixing block; After the radio frequency cable (8) and the low frequency electrical connector (5) are connected to the testing equipment, the test is performed.

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